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Index: Expose an iterator over all entries

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Importantly, this includes the commits that are not visible and
thus not in the `all()` revset.
This commit is contained in:
Ilya Grigoriev 2023-01-02 16:24:00 -08:00
parent 10794461b9
commit c34b2328c0
1 changed files with 17 additions and 0 deletions
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17
lib/src/index.rs
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@ -127,6 +127,10 @@ impl<'a> IndexRef<'a> {
} }
} }
pub fn iter(&self) -> impl Iterator<Item = IndexEntry<'a>> + '_ {
(0..self.num_commits()).map(|pos| self.entry_by_pos(IndexPosition(pos)))
}
pub fn walk_revs(&self, wanted: &[CommitId], unwanted: &[CommitId]) -> RevWalk<'a> { pub fn walk_revs(&self, wanted: &[CommitId], unwanted: &[CommitId]) -> RevWalk<'a> {
match self { match self {
IndexRef::Readonly(index) => index.walk_revs(wanted, unwanted), IndexRef::Readonly(index) => index.walk_revs(wanted, unwanted),
@ -1652,6 +1656,7 @@ mod tests {
assert!(index.entry_by_id(&CommitId::from_hex("000000")).is_none()); assert!(index.entry_by_id(&CommitId::from_hex("000000")).is_none());
assert!(index.entry_by_id(&CommitId::from_hex("aaa111")).is_none()); assert!(index.entry_by_id(&CommitId::from_hex("aaa111")).is_none());
assert!(index.entry_by_id(&CommitId::from_hex("ffffff")).is_none()); assert!(index.entry_by_id(&CommitId::from_hex("ffffff")).is_none());
assert_eq!(index.iter().collect_vec(), vec![]);
} }
#[test_case(false; "memory")] #[test_case(false; "memory")]
@ -1768,6 +1773,17 @@ mod tests {
let entry_3 = index.entry_by_id(&id_3).unwrap(); let entry_3 = index.entry_by_id(&id_3).unwrap();
let entry_4 = index.entry_by_id(&id_4).unwrap(); let entry_4 = index.entry_by_id(&id_4).unwrap();
let entry_5 = index.entry_by_id(&id_5).unwrap(); let entry_5 = index.entry_by_id(&id_5).unwrap();
assert_eq!(
index.iter().collect_vec(),
vec![
entry_0.clone(),
entry_1.clone(),
entry_2.clone(),
entry_3.clone(),
entry_4.clone(),
entry_5.clone(),
]
);
// Check properties of some entries // Check properties of some entries
assert_eq!(entry_0.pos, IndexPosition(0)); assert_eq!(entry_0.pos, IndexPosition(0));
assert_eq!(entry_0.commit_id(), id_0); assert_eq!(entry_0.commit_id(), id_0);
@ -1847,6 +1863,7 @@ mod tests {
// Stats are as expected // Stats are as expected
let stats = index.stats(); let stats = index.stats();
assert_eq!(stats.num_commits, 7); assert_eq!(stats.num_commits, 7);
assert_eq!(index.iter().collect_vec().len(), 7);
assert_eq!(stats.num_heads, 1); assert_eq!(stats.num_heads, 1);
assert_eq!(stats.max_generation_number, 2); assert_eq!(stats.max_generation_number, 2);
assert_eq!(stats.num_merges, 1); assert_eq!(stats.num_merges, 1);